linux-stable-rt/arch/i386
Ingo Molnar 95492e4646 [PATCH] x86: rewrite SMP TSC sync code
make the TSC synchronization code more robust, and unify it between x86_64 and
i386.

The biggest change is the removal of the 'fix up TSCs' code on x86_64 and
i386, in some rare cases it was /causing/ time-warps on SMP systems.

The new code only checks for TSC asynchronity - and if it can prove a
time-warp (if it can observe the TSC going backwards when going from one CPU
to another within a critical section), then the TSC clock-source is turned
off.

The TSC synchronization-checking code also got moved into a separate file.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16 08:13:57 -08:00
..
boot [PATCH] __crc_... is intended to be absolute 2007-02-01 16:17:06 -08:00
crypto
kernel [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
lib
mach-default [PATCH] mca_nmi_hook() can be called at any point 2007-02-01 16:17:05 -08:00
mach-es7000 ACPICA: Remove duplicate table manager 2007-02-02 21:14:28 -05:00
mach-generic [PATCH] i386: make apic probe function non-init 2007-01-11 01:52:44 +01:00
mach-visws
mach-voyager [PATCH] x86: fix PDA variables to work during boot 2007-01-22 19:39:36 -08:00
math-emu [PATCH] i386: avoid gcc extension 2007-02-13 13:26:24 +01:00
mm [PATCH] i386: Remove extern declaration from mm/discontig.c, put in header. 2007-02-13 13:26:26 +01:00
oprofile [PATCH] i386: Handle 32 bit PerfMon Counter writes cleanly in oprofile 2007-02-13 13:26:23 +01:00
pci [PATCH] mmconfig: Move e820 check into pci_mmcfg_reject_broken() 2007-02-13 13:26:20 +01:00
power
Kconfig [PATCH] vmi-versus-hrtimers 2007-02-16 08:13:56 -08:00
Kconfig.cpu [PATCH] i386: Remove unused kernel config option X86_XADD 2007-02-13 13:26:25 +01:00
Kconfig.debug [PATCH] i386: Paravirt debug defaults off 2007-02-13 13:26:22 +01:00
Makefile
Makefile.cpu
defconfig [PATCH] i386: Update defconfig 2007-02-13 13:26:19 +01:00